Reihe Grundlehren der mathematischen WissenschaftenKosaku Yosida ×eBooks × Functional Analysis Kosaku YosidaSpringer BerlineBook2013 Functional Analysis Kosaku YosidaSpringer BerlineBook2013 Functional Analysis Kosaku YosidaSpringer BerlineBook2013 Functional Analysis Kosaku YosidaSpringer BerlineBook2012 Functional Analysis Kosaku YosidaSpringer BerlineBook2012